/*
 * Copyright 2004-2005, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
 * Distributed under the terms of the MIT License.
 */


#include <KernelExport.h>

#include <safemode.h>
#include <kernel.h>
#include <syscalls.h>

#include <string.h>


extern "C" status_t
get_safemode_option(const char *parameter, char *buffer, size_t *_bufferSize)
{
	void *handle = load_driver_settings(B_SAFEMODE_DRIVER_SETTINGS);
	if (handle == NULL)
		return B_ENTRY_NOT_FOUND;

	status_t status = B_ENTRY_NOT_FOUND;

	const char *value = get_driver_parameter(handle, parameter, NULL, NULL);
	if (value != NULL) {
		*_bufferSize = strlcpy(buffer, value, *_bufferSize);
		status = B_OK;
	}

	unload_driver_settings(handle);
	return status;
}


//	#pragma mark -


extern "C" status_t
_user_get_safemode_option(const char *userParameter, char *userBuffer, size_t *_userBufferSize)
{
	char parameter[B_FILE_NAME_LENGTH];
	char buffer[B_PATH_NAME_LENGTH];
	size_t bufferSize, originalBufferSize;

	if (!IS_USER_ADDRESS(userParameter) || !IS_USER_ADDRESS(userBuffer)
		|| !IS_USER_ADDRESS(_userBufferSize)
		|| user_memcpy(&bufferSize, _userBufferSize, sizeof(size_t)) < B_OK
		|| user_strlcpy(parameter, userParameter, B_FILE_NAME_LENGTH) < B_OK)
		return B_BAD_ADDRESS;

	if (bufferSize > B_PATH_NAME_LENGTH)
		bufferSize = B_PATH_NAME_LENGTH;

	originalBufferSize = bufferSize;
	status_t status = get_safemode_option(parameter, buffer, &bufferSize);

	if (status == B_OK
		&& (user_strlcpy(userBuffer, buffer, originalBufferSize) < B_OK
			|| user_memcpy(_userBufferSize, &bufferSize, sizeof(size_t)) < B_OK))
		return B_BAD_ADDRESS;

	return status;
}